Westminster is a city located in Colorado. With a 2020 population of 113,044, it is the 9th largest city in Colorado and the 264th largest city in the United States. Westminster is currently declining at a rate of -0.05% annually but its population has increased by 6.53% since the most recent census, which recorded a population of 106,114 in 2010. Westminster reached it's highest population of 113,227 in 2018. Spanning over 34 miles, Westminster has a population density of 3,579 people per square mile.
The average household income in Westminster is $96,639 with a poverty rate of 7.17%. The median rental costs in recent years comes to $1,430 per month, and the median house value is $340,900. The median age in Westminster is 36.6 years, 35.8 years for males, and 37.5 years for females. For every 100 females there are 99.5 males.